from django.db import models


# Create your models here.


class Author(models.Model):
    '''作者模型'''
    name = models.CharField(max_length=100)
    age = models.IntegerField()
    email = models.EmailField()

    class Meta:
        db_table = "front_author"


class Publisher(models.Model):
    '''出版社模型'''
    name = models.CharField(max_length=300)

    class Meta:
        db_table = "front_publisher"


class Book(models.Model):
    '''图书模型'''
    name = models.CharField(max_length=300)
    pages = models.IntegerField()
    price = models.FloatField()
    rating = models.FloatField()
    author = models.ForeignKey(Author, on_delete=models.CASCADE)
    publisher = models.ForeignKey(Publisher, on_delete=models.CASCADE)

    class Meta:
        db_table = "front_book"


class BookOrder(models.Model):
    '''图书订单模型'''
    book = models.ForeignKey(Book, on_delete=models.CASCADE)
    price = models.FloatField()

    class Meta:
        db_table = "front_book_order"
